package com.example.lotterysystem.service.impl;

import com.example.lotterysystem.common.errorcode.ServiceErrorCodeConstants;
import com.example.lotterysystem.common.exception.ServiceException;
import com.example.lotterysystem.common.util.*;
import com.example.lotterysystem.service.VerificationCodeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;

@Service
public class VerificationCodeServiceImpl implements VerificationCodeService {
    //对于redis里面的key需要进行标准化
    //为了区分业务,要给key定义前缀
    private static final String VERIFICATION_CODE_PREFIX = "VERIFICATION_CODE_";
    private static final Long VERIFICATION_CODE_TIMEOUT = 60L;
    private static final String VERIFICATION_CODE_TEMPLATE_CODE= "SMS_475840627";

    @Autowired
    private SMSUtil smsUtil;
    @Autowired
    private RedisUtil redisUtil;
    @Override
    public void sendVerificationCodeService(String phoneNumber) {
        //校验手机号
        if(!RegexUtil.checkMobile(phoneNumber)){
            System.out.println(phoneNumber);
            throw new ServiceException(ServiceErrorCodeConstants.PHONE_NUMBER_ERROR);
        }
        //生成随机验证码
        String code = CaptchaUtil.getCaptcha(4);//先生成4位的
        //发送验证码
        Map<String,String> map = new HashMap<>();
        map.put("code",code);
        smsUtil.sendMessage(VERIFICATION_CODE_TEMPLATE_CODE,phoneNumber, JacksonUtil.writeValueAsString(map));
        //缓存验证码,先将key定义成统一的
        redisUtil.set(VERIFICATION_CODE_PREFIX+phoneNumber,code,VERIFICATION_CODE_TIMEOUT);
    }

    @Override
    public String getVerificationCodeService(String phoneNumber) {
        if (!RegexUtil.checkMobile(phoneNumber)){
            throw new ServiceException(ServiceErrorCodeConstants.PHONE_NUMBER_ERROR);
        }
        return redisUtil.get(VERIFICATION_CODE_PREFIX+phoneNumber);
    }
}
